Η μαγνητική αντλία (αντλία μαγνητικής κίνησης) αποτελείται κυρίως από την κεφαλή της αντλίας, τη μαγνητική κίνηση (μαγνητικός κύλινδρος), τον κινητήρα, τη σύνδεση της πλάκας πυθμένα και άλλα μέρη. When the motor drives the external magnetic rotor to rotate, the magnetic field can penetrate the air gap and non-magnetic substances, drive the inner magnetic rotor connected with the impeller to rotate synchronously, to achieve the non-contact synchronous transmission of power, and convert the dynamic seal structure that is easy to leak into a static seal structure with zero leakage.
1. After 1000 hours of normal operation of the magnetic pump, the wear of the bearing and the end moving ring should be removed and the wearing parts should be replaced.
2. The ambient temperature of the pump in use should be less than 40 ° C, and the temperature rise of the motor should not exceed 75 ° C.
3. the conveying medium and its temperature should be within the allowable range of magnetic pump material. The operating temperature of the engineering plastic pump is <60 ° C, the operating temperature of the metal pump is <100 ° C, and the conveying suction pressure is not more than 0.2MPa.
4. In the conveying medium, if it contains solid particles, the pump inlet should be filtered: if it contains ferromagnetic particles, a magnetic filter should be added.
5. If the conveying liquid is a medium that is easy to precipitate and crystallize, it should be cleaned in time after use to drain the liquid in the pump.
6. the cooling and lubrication of the magnetic pump bearing is dependent on the conveying medium, so it is absolutely prohibited to run empty; At the same time, attention should also be paid to the sudden power failure of the pump during operation, and then start the space-time load operation.
7. pump assembly GC boiler feed pump assembly quality directly affects the normal operation of the pump, and affects the service life and performance parameters of the pump; Affecting the vibration and noise of the unit, the following points should be noted in the assembly:
A. The concentricity of the fixed part after the combination of the parts is guaranteed by the manufacturing accuracy and assembly quality of the parts, and the processing accuracy and surface roughness of the parts should be ensured, and no touching or scratching is allowed. Molybdenum disulfide used as a sealant should be clean. Fastening screws and bolts should be stressed evenly.
b, the neutrality of the impeller outlet runner and the guide vane inlet runner is guaranteed by the axial size of each part. The neutral flow channel directly affects the performance of the pump, so the size of the pump can not be adjusted at will.
c, after the pump assembly is completed, before packing, rotate the pump rotor by hand to check whether the pump rotor rotates flexibly in the housing and whether the axial channeling meets the specified requirements.
d. After the above inspection meets the requirements, add packing to the shaft seals at both ends of the pump, and pay attention to the relative position of the packing ring in the packing chamber.
8. pump disassembly
A. Disassembly should be carried out in the opposite order to assembly, and the manufacturing accuracy of the parts should be strictly protected from damage during disassembly.
B. When disassembling the piercing rod, each middle section should be lifted with a cushion first, so as not to sink and bend the shaft after the middle section stop becomes loose.